it is是什么词性用在什么句型中

Question

如题所述

Answer 1

确切地说，it is 是一个句型，它用在强调句和形式主语中。如：
1. 强调句 It is Tom who often helps me. 是汤姆常常帮助我。
这句话如果不强调，就是： Tom often helps me.
2. 形式主语 It is important to learn English。学习英语很重要。这里的it 不是真正的主语，真正的主语是to learn English. 从汉语翻译中也可以看出这一点。

Answer 2

it通常是代词，常用作形式主语
is 是系动词
it is的句型常见的有这几种
1 it is +形容词/名词+for sb to do sth.
eg, it is hard for you to finish it alone
it is your duty to look after your old parents.
2 it is +形容词（人的性格等）+ of sb to do sth.
eg, it is kind of you to help me.
3 强调句型 it is +被强调部分+that+其他
eg, it is you that are to blame.

Answer 3

it is是两个词，前者是代词，后者是系词，两个词通常一起用在判断句中。例如：It is a book.

Answer 4

这个不是词 也不是短语
都用在陈述句里的主语+BE动词 最简单的句子就是 它是的意思

Answer 5

主谓或者系表结构！！